Sand-reel-operating mechanism



' Oct. 23, 1928. 1,688,599

R..W. SAGE ET AL SAND REEL OPERATING MECHANISM Filed July 17; 1922 2 sheets-sheet 1 i4 TTORNE y oef. 23, 192s. 1,688,599

R. w. sAGE ET AL SAND REEL OPERATING yIIIEGHANISM Fild ,my 17, 1922 2 sheets-sheet 2 Patented Oct. 23, 1928.

UNITED STATES PATENT GFFICE.

RICHARD WARD SAGE AND HARRY RAYMOND BOUGHNER, OF AUGUI'STA, KANSAS'.

SAND-REEL.-QPERATING i MECHANISM.

Application filed July 17,

This invention relates to a sand reel op-v erating mechanism and the primary object of theV invention is to improve the const-ruction, operation and control of a sand reel operating mechanism for controlling the sand reel used in drilling' deep wells.

Ordinarily the sand reels are. driven from the rim or face of a band wheel and friction al gearing is used. This gearing has certain advantages but it does not permit as flexible a control as is desirable under the. varying conditions encountered with a mechanism of this general class.

Our invention provides means whereby friction clutches can be employed for effecting the driving and a friction brake may be employed to prevent the overrunning of the sand reel; the brake and one of the driving clutches being` so. connected that they are alternately caused to function andv release with a single operation ofv a lever. A Yfrictioiml drive is desirable because the bailer on the cable Wound about the reel sometimes catches in the end of the, pipe section or hangs on some other obstruction and if a positive clutch were used, disastrous results would follow. with a friction drive, however, the driving parts can slipv so that the disadvantages resul'ting from a positive clutch can'be eliminated.

We also provide means for mounting the driving mechanism upon a portable base, such as runners or skids, so that the device can be transported from place to place.

Tn actual practice we arrange the mechanism so that it can be connected to a standard drilling rig in a convenient manner. p

There are other novel features about the invention which willbe appreciated as the Fig. 1 is a perspective view of the sand reel operating mechanism complete.

Fig. 2 is a cross'sectional view on theline 2-2 of Fig. 1.

Fig. 3 is a sectional view on the line 3-3 of Fig. 5.

Fig. 4 is a sectional view on the line 4-4 of Fig. 2, and.

Fig. 5 is a top plan view of the sand reel operating mechanism.

In carrying out our invention we provide and 12.

1922. Serial N0 575,464.

two standards 1 and 2 in spaced relation, preferably on the drill rig floor, At the upper ends of the standards 1 and 2 are bear-- ings 3 and 4, in which isr mounted a transverse shaft 5 driven by the drill rig through the wheel 6. A clutch drum 7 is keyed to. the shaft 5 and is bolted rigid with the wheel 6 through the medium of the bolts 8 which pass through the web of the drum through the wheel 6 and through a collar 9, also keyed to the shaft, as will be clearly seen by refer'- ence to Fig. 4.

A sliding clutch collar 10 is mounted on the shaft 5 and it is provided with grooves 1 In the groove 11 are the arms of a yoke 18 onthe end of a lever 14, pivoted te the bracket 15 rigid with the sprocket 16. loosely mounted on shaft 5, the diameter of the sprocket being greater than that of the drum' 7. lThe groove 12 receives the pins 17 and 1S of a clitch shifter yoke 19 which is operated by the rod 2O mounted in the bracket 21 carried by the standard 2 (see Fig. 1). Therefore, when the rod is turned, the collar 10 will be shifted to rock the lever 14. n

0n the upper end of the lever 14 is a link 22 which causes a clutch band 23 mounted about thev drum 7 to expand and contract so as to engage and disengage the periphery of the clutch drum. The link extends through the sprocket, as seenin Fig. 4. When the band 23 binds on the periphery of the clutch drum, it will rotate with the clutch drum. Therefore, the sprocket` 16 will be rotated but when the band is released from the clutch drum, the wheel 6, shaft 5 and clutch drum may rotate without rotating the sprocket.

.The sprocket 16 is preferably made in halves and the two halves are connected at 24 (see Fig. 2) so that the sprocket can be removed from the shaft for the purpose o-f inspection andV repairs without taking Voff the shaft 5.

The sprocket 16v drives a sprocket 25 through the medium of a chain 26. `The sprocket 25 is rigid with the collar or hub 27 of a disk 28, looselyl mounted on a shaft 29, supported in bearings 30 and 31 in the pillow blocks 32 and 33, the pillow blocks being in turn supported upon the portable skids or runners 34 and 35. Since the disk 28,y the hub 27 and the sprocket 25 are rigidly connected, it will be apparent that these' may rotate on the shaft 29 without rotating the shaft and since the sand reel 36 is keyed to v the shaft, the sand reel will be rotated only when the shaft rotates.

Interposed between the ends of thc sand reel and the disk 23 is a drum 37, keyed to the'shaft 29 and provided with two circumferential clutch faces 33 and 39, divided by yan annular partition 46 (see Fig. About the clutch face 33 is a friction band 41, to one end of which is connected a link 42 fastened to one arm of an elbow lever 43, pivoted at 44 to a plate 45, the plate being reinforced by a rod 46, fastened to another plate 47 on the band. The other arm of the elbow lever between the ends of the band is fastened to a link 46, connected to the upper end of the lever 47 pivoted at 43 to the bracket 49 rigid with the disk 28. The lower end of the lever '47 is bifurcatedto form a yoke-shaped end 50, engaging the ends of the fingers or bars 51 and 52 carried by the head 53 on thesleeve 54, loosely mounted on the shaft 29. The fingers or bars 51 and 52 project through the sprocket 25 and they have longitudinal inovement through openings therein.

When the sleeve 54 is shifted away from the disk 28, the lower end of the lever 47 will be shifted away from the disk 28 and the upper end of the lever 47 will move toward the disk 28, shifting` the link 46 in the same direction to swing the arm of the elbow lever to which it is connected toward the sand reel.

The other arm of the elbow lever will impart a longitudinal movement to the link 46 to open the band or expand it. Therefore, the sleeve 54, the sprocket, the hub 27, the disk and the clutch hand 41 may rotate about the axis of the shaft 29 without imparting a rotative movement to the drum 37. l/Vhen the sleeve 54 is shifted in an opposite direction, however, the band 41 will be contracted about the clutch face 33 so that the drum 37 will rotate and-since it is keyed to the shaft 29, the shaft 29 will rotate. rotating the sand reel 36 which is also keyed to the shaft 29.

We have provided mechanism `for shifting the collar or sleeve 54 and it consists of an elbow lever 55, pivoted in the bracket 56 bridging the space between the skids 34 and 35, as clearly seen in Figs. 1 and 5. One arm of the elbow lever is provided with a yoke 57 which engages a groove 58 in the collar 54. The other end of the elbow lever is connected to an actuating rod 59, which may have longitudinal movement imparted to it by an appropriate means so as to swing the lever 57 about its pivot point 60. The rod 59 is also connected to one end of a rocking lever 61, pivoted at 62, the end 63 of the levei1 61 being Connected to a link rod 64 which engages the pivotal point 65 of the toggle levers 66 and 67 (see Fig. 2).

The toggle lever 67 is pivoted to the base 68 of a bracket having an upstanding portion 69 to which an elbow lever 70 is pivoted, one

lis in the well.

arm of the elbow lever being fastened to the lupper end of the toggle 66. Therefore, when the rod 64 is moved longitudinally, the toggle levers will rock the elbow lever 70. The up` per end of the elbow lever is pivotally fastened to a link bolt 71 connectedv'to the end 72 of .a brake band 73 mounted about the clutch face 39. The other end of the brake band 7 3 is connected to thelever 70 by a link bolt 74, as will be clearly seen by reference to Fig. 2.

The levers 55 and 61 are so connected to the rod 59 and bear such co-operating relationy that when the rod 59 is shifted in one direction to cause the collar or sleeve 54 to move in a direction to contract the clutch band 41, the lever 61 will be effective in causing the brake band 73 to expand and when the collar 54 is shifted in an opposite direction so as to release the drum 37, the brake'band will contract about its face 39. So it will be seen that the bands 41 and 73 alternately expandV and contract. The reason for this is th at when the bailer is to be released into the well, the driving connection must not be functioning. The shaft 29 then can have a free turning movement retarded only by the brake band 73, which will be under the control of the rod 59. Therefore, the operator can control the speed of rotation of the sand reel 36 and consequently the speed of descent of the bailer, it being understood that the driving action through the sprocket 16, the sprocket chain and the sprocket 25 is such as to cause a cable winding motion to be imparted to the sand reel 36 whereas the brake band 73 is to retard the unwinding movement of the sand reel 36. i

Vhen the parts are assembled and the shaft 5 is turning, the operator can cause the sprocket 16 to rotate by operating the clutch band 23 to cause it to bind on the drum 7.

This willcause the sprocketv25 to rotate as heretofore explained. e Then the operator can shift the rod 59 so that the band 41 will bind on drum 37, causing the bailer cable to wind on reel 36, it being assumed that the bailer During the time the brake band is released, should the bailer strike an obstruction or hang on any projection, the clutch band 41 will slip about the face 38 of the drum thereby eliminating the liability of wrecking the driving mechanism.

When the bailer has been drawn to the-top of the well and it is desired to lower it again, the operator will manipulate the rod 59 to expand the band 41. This action automatically contracts the band 7 3 so that the bailer can be lowered into the well but under the control of the operator who can manipulate the rod 59 so as to increase or decrease the amount of friction or resistance'offered by the band to the face 39 of the druin37. kVVVhen the bailer has been lowered to the bottom of the well, the rod 59 Vwill again be shifted so as to release the brake band but throw in the clutch band 41, when the winding operation will begin again.

It will be apparent from the foregoing that the device is simple in operation and that liability of wrecking the mechanism under the varying conditions encountered in well drilling will be reduced to a minimum if not wholly eliminated. Vhile we have shown and described a specific form of device for accomplishing the desired result, we do not wish to be limited to the exact details shown but reserve the right to make such changes in form, proportion and minor details of construction as properly come within the scope of the appended claim without departing from the spirit of our invention.

What we claim and desire to secure by Letters Patent is:

In a hoisting mechanism, adrive shaft and a Idriven shaft, a sprocket on the drive shaft having slip connection therewith, a sprocket on the driven shaft, a driving connection bet-ween the sprockets, a disk fixed to the last named sprocket having a clutch face, a clutch band carried bythe disk and adapted for operative connection with the clutch face, a collar slidable on the driven shaft, pins eX- tending laterally from the collar and slidably through openings in the last named sprocket to rotatably key the sprocket to the collar, a. lever carried by the disk and operatively connected with said clutch band, a connection between the pins and the actuating lever, means for slidably actuating the collar to shift said lever, brake mechanism including a. clutch member on the driven shaft, a brake band cooperating with said member, and actuating means for the brake band in operative connection with the collar actuating means to effect simultaneous opposite movement of the brake band and'clutch band on the driven shaft members. Y

In testimony whereof we affix our signatures.

RICHARD WARD SAGE. HARRY RAYMOND BOUGHNER. 

